VEP examination with new portable device

Kuba, M; Kremláček, Jan; F, Vít; Kubová, Zuzana; Langrová, J.; Szanyi, Jana; Chutná, Marie

doi:10.1007/s10633-022-09911-w

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Attempts have also been made to compensate for the difficulty of local retinal evaluation, which is a drawback of VEP, using mfVEP. Recent research has focused on the development of a new portable VEP device for easier testing [ 124 , 125 ].…”

Section: Discussionmentioning

confidence: 99%

Visual Evoked Potentials for the Detection of Diabetic Retinal Neuropathy

Miura

2023

IJMS

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Visual evoked potentials (VEP) are visually evoked signals that extract electroencephalographic activity in the visual cortex that can detect retinal ganglion cells, optic nerves, chiasmal and retrochiasmal dysfunction, including optic radiations, and the occipital cortex. Because diabetes causes diabetic retinopathy due to microangiopathy and neuropathy due to metabolic abnormalities and intraneural blood flow disorders, assessment of diabetic visual pathway impairment using VEP has been attempted. In this review, evidence on the attempts to assess the visual pathway dysfunction due to abnormal blood glucose levels using VEP is presented. Previous studies have provided significant evidence that VEP can functionally detect antecedent neuropathy before fundus examination. The detailed correlations between VEP waveforms and disease duration, HbA1c, glycemic control, and short-term increases and decreases in blood glucose levels are evaluated. VEP may be useful for predicting postoperative prognosis and evaluating visual function before surgery for diabetic retinopathy. Further controlled studies with larger cohorts are needed to establish a more detailed relationship between diabetes mellitus and VEP.

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Section: Discussionmentioning

confidence: 99%

Visual Evoked Potentials for the Detection of Diabetic Retinal Neuropathy

Miura

2023

IJMS

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“…The reference electrode and the electrode for noise suppression of the recorded signal (Czech Technical University in Prague -patent CZ 302454) were placed on the opposite sides of an earlobe clip. Signal smoothing with a Savitzky-Golay filter was applied (for more details about VEPpeak see Kuba et al (7)).…”

Section: Characteristics Of the Portable Device For Vep And Erp Exami...mentioning

confidence: 99%

Evaluation of Diurnal Changes of Mental Fatigue Using a New Portable Device for Visual Cognitive Evoked Potentials

Chua,

Miller,

Sayyeda

et al. 2023

Acta Med. (Hradec Kralove, Czech Repub.)

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In the age homogenous group of 13 healthy volunteers, we examined visual evoked potentials (VEP) visually evoked cognitive potentials (event-related potentials – ERP) and choice reaction time (CRT) five times during the day (from 10.00 a.m. up to midnight) to verify whether there are significant changes of the measured parameters of the cortical evoked potentials and CRT which might reflect the level of the mental fatigue. The electrophysiological testing was done with the use of a new portable VEP device named “VEPpeak” enabling to perform the examination outside standard labs in almost any conditions. It was found that the latency of ERP (P300 peak time) and CRT displayed significant prolongation toward midnight while VEP latency and all amplitudes did not change significantly. This pilot study supports our idea that the portable VEP device possibly might be used for the objective examination of mental fatigue that is needed in many situations. This should be confirmed in a larger study also including a comparison with non-electrophysiological fatigue testing.

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